APA (7th ed.) Citation

Allen, W. S. (1955). Living English structure: A practice book for foreign students and key (3rd ed.). Longmans, Green and Co.

Chicago Style (17th ed.) Citation

Allen, W. Stannard. Living English Structure: A Practice Book for Foreign Students and Key. 3rd ed. London [etc.]: Longmans, Green and Co, 1955.

MLA (9th ed.) Citation

Allen, W. Stannard. Living English Structure: A Practice Book for Foreign Students and Key. 3rd ed. Longmans, Green and Co, 1955.